Solve the Multiplication Equation: (-2) × ? = -4

Question

Fill in the missing number:

(2)?=4 (-2)\cdot?=-4

Video Solution

Solution Steps

00:00 Find the unknown
00:04 First we'll find the sign of the unknown
00:10 Negative times positive is always negative
00:14 Therefore the unknown is positive
00:22 Find the unknown
00:35 And this is the solution to the question

Step-by-Step Solution

Remember the following law:

(x)×(+x)=x (-x)\times(+x)=-x

Let's think about which number we need to multiply by 2 to get 4:

2×2=4 2\times2=4

Now let's put the numbers together with the appropriate sign as written in the law above as follows:

2×(+2)=4 -2\times(+2)=-4

Answer

2 2